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 (plī-ŏt′rə-pē) also plei·ot·ro·pism (-pĭz′əm)
n. Biology
The production of diverse effects, especially the production by a single gene of several distinct and seemingly unrelated phenotypic effects.

[Greek pleiōn, more; see pelə- in Indo-European roots + -tropism.]

plei′o·tro′pic (plī′ə-trō′pĭk, -trŏp′ĭk) adj.


(plaɪˈɒ trə pi)

the phenomenon of one gene affecting more than one phenotypic characteristic.
plei`o•trop′ic (-əˈtrɒp ɪk, -ˈtroʊ pɪk) adj.
plei`o•trop′i•cal•ly, adv.
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References in periodicals archive ?
Psychiatrists should start conceptualizing DSM-5 disorders not as freestanding medical conditions but as syndromes--collections of inter-related clinical phenotypes resulting from pleiotropic genes.
It explains more than 20% of genetic variance (variation from pleiotropic genes excluded) in the Cd.
In adopting Williams' concept of pleiotropy, specific pleiotropic genes were suggested by Kirkwood and Holliday (1979) in the disposable-soma theory of aging, namely, genes that control the level of somatic maintenance versus the level of reproductive output (Kirkwood 1985).